Coupling connection to hose pipes



Patented May 19',v 192.5.

. lgtaisas uNiTEo STATES PATENT olFi-icsg JOHN GANE, F- VAINUVEB, BRITISH COLUMBIA, CANADA.

COUPLING QONNECTION T0 HOSE PIPER. Y

Applicatie; inea apra ao, ,1924. seriai no.' 710,162.-

To all 'ui/wm# 'may conoci'u:

Be itl known that. I, .loma GANE, citizen otthe .Dominion of Canada. residing at Vaucouver, in the Province of' British Columbia, Canada., have invented certain new and useful Improvements in Coupling Connections to Hose l`Pipes, of which the following .is a specilcation. k 'l`his invention relates to ameans for IU securing the male and female portions of a uiion cou ling to a `flexible hoseipe, such l as is use( for othepconveyance o ,auisolenrI or the like. i' l Greatditlicultv is experienced not in mak- -16 ing -the 4union connection itself `gasolcnctight` but in making tight the conncr-tlon of the hose-pipe to the parts of t-lie union.

AIn the device. which forms the subject of this applicatiombeth the n aleland female 20 parts of the coupling have a tubular portion'which projects within the liose-pi e, and a gland 'screwv which' is segmenta ly 'split that` when screwed'within a. slighttaper of that portion of the union from which the i tubular portion projects, contracts' the end of the hose-pipe on the tubular portion and simultaneously compresses a; sealing mate'- rialin the'joint, thereby making an effective gasolene-tight ioint that can be quickly :ip-

plied .without the r uirement of the'special appliances 'of n ,wor shop suchas is usual. 'lbeinvention is fully described in the following specification, reference lbeing made i tothe drawings by wliichvit is accompanied,

i-u which: Figl Vis a vertical longitudinal section through the connection, and Fig. 2 is a cross section onthe line 2-24n Fig. 1.

In these drawings 2 represcn'tsa flexible` hose-pi e, such as is used for the conveyance 40 of gaso ene which is usually constructed of a flexible metal coil with a,v thick layer of rubber protected on the outer side with cotton fabric. 'MOn the square cut. end of this hose is applied a gland screw Il having a. heagon head 4; which `screw is internally threaded that it may be screwed mi the hose-pipe 2 and is externally [threaded with a slight ta er'to it an internally threaded member` 5 orming'a part of the union connection 6. The screw 3 is radially split, as at 7, that when screwed tightly into 5, the several split seginents will by -the taper be, con.-

tracted tightly on the hose-pipe 2.

.55, `The length of the screwed portion 3is less than the recessl of 5 in which it is screwed, to leave a space for the reception ot ascalmg cement 8 of asbestos fibre and litharge.

Secured. to or integral with the member 5,.. and projecting axially for a substantial vdis? o tance beyond the cud. of 5 .is a tubular portion t), adapted to closely [it within the metal liniig ofthe hoscpipe land to reinforce the1 pipe beyond its connection to the screw en wliich the. gland screw 3, 4 has been .applied and iss'rrewed upon the outer side of 3, the tapeu of the screwing compresses the segments of 2l tightly on the hose-pipe and consequently the hose-pipe tightly en the, tubular projection 9`. JAt the same time the cementing material in tbecspace 8 is compressed; into any interstices between the hose-pipe and the tubular projection 9 and f' When the tubular portion 9 of the mem .i ber 5 is Minserte'diin the end vof the hose-pipe relatively permanent. in itsl Attention is drawn to the following a dvantagcous lfeatures in this construction:

That the tubular portion lits easily in the hose-pipe 2; that it can be applied by hand,

and is tight thereon by the; taperedand split gland screw 3, which screw simultaneously compresses the eemen'ting material 8 to seal allI interstices through which the gasoline might leak: and that the tubular ortioii 9 extends welhbeyondtheend of t' e union conuection'and not only reinforce it thereat, but supports the cemented joint against any flexnre `that would tend to cement.

'l'hat these several features are interdelee pendent'and together make for the absolute security ot the j co'nnection.

As theinternal nipple portion is smooth ,rand uniformly cylindrical the /n'pple is adapted for use with internally armored art are not so adaptable. Hav'in now articularly described my invention, here y'declare that what clali fhose, wliereasthe old devices of the prior as new and desire to be protected in by Letl ters Patent, is:

1. A` means for securing a coupling connection to the end of a internally armored hose-pipe, said means comprising, the com-x bination with a coupling .member having at one end a male or .female coupling connection and at the other end aporti-on internally. tapered and screw-threaded,V and concentric therewith a smooth and uniform` ly cylindrical tubularportion adapted to tightly fit the inside of the hose-pipe and extending from the inner end of the threaded recess to beyon/d the outer end `of the same,

a""s1eeve littingthe outside of the hose-pipe` and threaded externally to it the tapered and threaded portion of the coupling connection `to a short distance from` its innerv nection to the end ofa internally armored .-fhose-pip, said'means comprising theconibination with a member having a male or female coupling connectiomat' one end and at'the other end Ia hexagonal portion` having an internal tapered Vscrew and projectngfrom the inner end Vof this threaded recess Vand concentric therewith a smooth and uniformly cylindrical tubular portion adapted toJt wlthin the end of the hose# pipe and extend considerably beyond the ture.

.outer end of the threaded recess, a hexagon headed sleeve threaded internally to t on the hose-pipe andI externally tapered and screw threaded to fit the internally threaded portion of the coupling connection, said sleeve havingE a series of radial slits from the inner end to the head.

3. A meansV for securing a coupling connection to the end of a internally armored hose-pipe, said means comprisingthe' combination with a member having ,a male or female coupling connection at one end and at` the other end -a hexagonal portion internally tapered and screw threaded and axially projecting from the inner end of this threaded recess andconcentric therewith a smooth and uniformly cylindrical tubularfportin adapted to fit within the end of the hose-pipe, a headed sleeve tightly ittin the outside ofithe hose-pipe and exthreaded portion of the coupling connection to' a ,short` distance from its inner end, theAt-hreaded portion of this sleeve being radially slit at intervalsapart to divide it into a series of flexible segments and a' suitable cement iilling vthe spacebetween the end of the hose-pipe and its gland screwo and the bbttom of the recess'in which they i In testimony whereof I aiix my signa- JOHN lterna ly threaded to fit the tapered and 

